# Re: Roots of the term "gammatone" ("Richard F. Lyon" )

Subject: Re: Roots of the term "gammatone"
From:    "Richard F. Lyon"  <DickLyon@xxxxxxxx>
Date:    Wed, 28 Mar 2012 08:36:07 -0700
List-Archive:<http://lists.mcgill.ca/scripts/wa.exe?LIST=AUDITORY>

Tamas, I recounted some of those mis-attributions in http://dicklyon.com/tech/Hearing/APGF_Lyon_1996.pdf and concluded: Aertsen and Johannesma [AJ80] appear to have coined the catchy name; referring to the envelope, they said: The form m(t) appears both as the integrand in the definition of the Gamma function $\Gamma(g)$ and as the density function of the Gamma distribution, therefore we propose to use ... the term "Gamma-tone" or "$\gamma$-tone." ... The non-hyphenated "gammatone," as an adjective modifying "filter," appears to be due to Patterson et al. [P88]. Dick At 10:05 AM +0200 3/28/12, Tamas Harczos wrote: >Dear List, > >I am looking for the first time use of the term "gammatone". Flanagan >('65), Johannesma and de Boer ('72,'75) did not use that term. Patterson >et al. write in their '88 APU report "An efficient auditory filterbank >based on the gammatone function" that "Johannesma (1972) used this >function to summarize revcor data, although he did not refer to it as >the gammatone function, and the function was not fitted to revcor data. >The name appears to have been adopted by de Boer and de Jongh (1978)". >However, I am not able to find the term "gammatone" in the de Boer and >de Jongh paper "On cochlear encoding: Potentialities and limitations of >the reverse-correlation technique" JASA 63(1), 1978. > >Any ideas? >Thanks! >Tamas > >-- >*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~* >Dipl.-Ing. Tamás Harczos >PhD Student >Institute for Media Technology >Faculty of Electr. Eng. and Inf. Techn. >Ilmenau University of Technology >Tel.: +49 3677 467 225 >Fax.: +49 3677 467 4225 >E-Mail: tamas.harczos@xxxxxxxx >*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*

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